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149103311 = 7173893221
BaseRepresentation
bin10001110001100…
…10001011001111
3101101120020021212
420320302023033
5301132301221
622443445035
73460233350
oct1070621317
9341506255
10149103311
117718a585
1241b2677b
1324b76a16
1415b33d27
15d153b5b
hex8e322cf

149103311 has 16 divisors (see below), whose sum is σ = 180947520. Its totient is φ = 119938560.

The previous prime is 149103307. The next prime is 149103313. The reversal of 149103311 is 113301941.

149103311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149103311 - 22 = 149103307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149103313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44681 + ... + 47901.

It is an arithmetic number, because the mean of its divisors is an integer number (11309220).

Almost surely, 2149103311 is an apocalyptic number.

149103311 is a deficient number, since it is larger than the sum of its proper divisors (31844209).

149103311 is a wasteful number, since it uses less digits than its factorization.

149103311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3634.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 149103311 is about 12210.7866658950. The cubic root of 149103311 is about 530.2684186821.

The spelling of 149103311 in words is "one hundred forty-nine million, one hundred three thousand, three hundred eleven".

Divisors: 1 7 17 119 389 2723 3221 6613 22547 46291 54757 383299 1252969 8770783 21300473 149103311